“你必须努力复习,才能出成绩。”用英语怎么说

You have to make efforts to review the lessons before you can have good scores in the exam.

you can achieve good results only if you study hard

Only you try your best can you get a good result .

in order to get good marks,you must work hard

In order to achieve good results, you must take pains to revise your schoolwork.

You have to review efforts in order to obtain good results.